
# The contents of this file are subject to the Mozilla Public License
# (MPL) Version 1.1 (the "License"); you may not use this file except
# in compliance with the License. You may obtain a copy of the License
# at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and
# limitations under the License.
#
# The Original Code is LEPL (http://www.acooke.org/lepl)
# The Initial Developer of the Original Code is Andrew Cooke.
# Portions created by the Initial Developer are Copyright (C) 2009-2010
# Andrew Cooke (andrew@acooke.org). All Rights Reserved.
#
# Alternatively, the contents of this file may be used under the terms
# of the LGPL license (the GNU Lesser General Public License,
# http://www.gnu.org/licenses/lgpl.html), in which case the provisions
# of the LGPL License are applicable instead of those above.
#
# If you wish to allow use of your version of this file only under the
# terms of the LGPL License and not to allow others to use your version
# of this file under the MPL, indicate your decision by deleting the
# provisions above and replace them with the notice and other provisions
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# above, a recipient may use your version of this file under either the
# MPL or the LGPL License.


from lepl._example.support import Example

from lepl import *


@sequence_matcher
def Digit(support, stream):
    digits = {'1': '',     '2': 'abc',  '3': 'def',
              '4': 'ghi',  '5': 'jkl',  '6': 'mno',
              '7': 'pqrs', '8': 'tuv',  '9': 'wxyz',
              '0': ''}
    if stream:
        digit, tail = stream[0], stream[1:]
        yield ([digit], tail)
        if digit in digits:
            for letter in digits[digit]:
                yield ([letter], tail)


class LettersTest(Example):
    
    def test_painter(self):
        results = Digit()[13, ...].match('1-800-7246837')
        #print(type(results))
        words = map(lambda result: result[0][0], results)
        assert '1-800-painter' in words
        